Incandescent electric lamp.



H GSANYI.

INGANDESOENT ELECTRIC LAMP.

APPLICATION FILED NOV. 3, 1913.

Patented Jan. 5, 1915.

' new csAN'Ynor' new YORK, n. 51., Assrenon 'ro axie-cm re i s Barnes? 00., or NEW resin, it. in. a ccnronarroner new ma ns a 1 ENCAND'ESCENT ELECTEEG 33AM? Specification of Letters Patent;

Application filed November 3, 1-913. serial No. 7923529.

' a To all whom it may concern I Be it known 'thatI, HENRY Csanrna subject, of the King of Hungary, residing at New York, in the county of New York and vState of New York, have invented new and useful Improvements in Incandescent Electric Lamps, of which the following is a slidablein the lamp casing orreflector ,-said' socket beingheld by the front lens-or win-'- dow of the casing in position to close the circuit through the lamp filament and maintainit closed, but on the breakage of said lens or window the socket will under the tension of a suitably disposed spring open the circuit and immediately extinguish the lamp.

To set forth more-clearly the novel featuresof the present invention attention is directed to the accompanying drawings illustrating the preferred form of the inventionliriwhich-- v t Figure 1 is a vertical central sectional view through a reflector provided with the 7 improved safety device; Fig; 2 is a" front elevation of the same. Fig. 3 is aperspectiv'eview ofan incandescent electric lamp and its socket removed from the casing;

In the drawings 10 indicates an incandescent electric lamp carried within a casing which in the present instance is in the forrn' of a conical reflector 11 closed at its larger end by a circular window in the form of'a lens 12 held in position by a spring ring 13 fitted between the outer periphery of the lens, and'the exterior edge of a head. 14 formed on the reflector. At'the apex of the reflector opposite the window 12, or wherever is most convenient is formed a tubular 'stem 15 filled at its outer end with an insu lating disk 16 through which passes a p n 1? forming one terminal of an electric line, the-other terminal-being formed by the tubular stem 15 to which the other line wire is directly connected. Fastened on the pin 17 within the tubular stem is a helical spring 18 that may be compressed, and which forms in connection with the pin 17 a part of the circuit.

The electric lamp l0 screws into the threaded extension 190i a sleeve 20 siidably mounted in the inner end of a tubular stem 15 and cotiperating therewith to form the lamp socket; the sleeve 20 is provided with a lateral flange 21 from which project a plurality of divergent fingers 22 that extend toward and bear upon the window orlens 12 when the lamp is inoperative position. The extension 19 and the fingers 22 project in the same general direction, that is in a direction opposite to the direction in which the sleeve 20 projects- The fingers 22 are of such length as to project beyond the reflector when the lens or window 12 is removed, and are held in such position by the spring- 18 which presses the lamp socket forward within the reflector in order to open the circuit-through the contacts, but when the lens is placed in position and pressedto its seat it bears upon the fingers 22 forcing the socket backwardly in the stem 15 close the circuit through the contacts. The lens or window 12 is held in position by the spring ring 13, as previously stated.

Asconstructed the lamp will burn when the circuit is closed through the line wire continuously so long as the window or lens remains intact unbroken, but should the latter be fractured pressure is removed from the fingers-22 and the spring 18, permitting the latter to expand and push the lamp. socket forward, thereby opening the circuit and extinguishing the light.

What I claim isz- 1. An electric lamp comprising'in combination, a socket having two insulated conducting parts, a movable conducting part in contact with one of said first named conducting parts and through which the cura position to maintain the circuit through the lamp:

2. A n electric lamp comprising in combinationTa-socket having two insulated conducting parts,a .movable conducting part in contact with one of said first named conducting parts and through which the current for the lamp passes, displacing means tending to displace said movable part to open the circuit and extinguish the lamp, a frangible part, and a member in contact with said frangible part and holding said displacing means in a position to maintain the circuit through the lamp.

3. A casing for an electric lamp having a. frangible window, and a lamp socket sleeve mounted to slide on said casing and a member between said window and said sleeve for holding said sleeve in circuit with line terminals on said casing until said window is broken.

4. A casing for an electric lamp having a frangible window, a lamp socket sleeve mounted to slide in said casing, and amember on said socket sleeve pressing against said window to hold said sleeve in circuit with line terminals on said casing until said window is broken.

5, A casing for an electric lamp having a frangible window, a lamp socket mounted to slide in said casing, a member on said socket pressing against said window to hold said socket in circuit with line terminals on said casing, and means to move said socket forward and open the circuit upon fracture of the window.

6. A casing for an electric lamp having a frangible window, a lamp socket mounted to slide in said casing, fingers on said socket pressing against said window to hold said socket in circuit with line terminals on said casing, and a spring to move said socket forward and open the circuit upon fracture of the window.

7. A casing for an electric lamp having a frangible window on one side and a tubular stem fitted with line terminals, a lamp socket slidable in said stem from which project fingers bearing on said window and holding said socket in electric circuit with said terminals, and means in said tubular lamp socket to project it forward and open Y said circuit when said window is broken.

9. A socket member for an incandescent lamp consisting of a sleeve extending in one direction, and having an extension projecting in the other direction to receive the lamp bulb, and having means projecting from said sleeve in the same direction as said extension for engaging a part of a lamp casing to retain the socket memberin a lamp socket. v

10. A socket member for an incandescent lamp consisting of a sleeve extending in one direction, and having an extension projecting in the other direction to receive the lamp bulb, and having a plurality of fingers projecting from said sleeve in the same general direction as said extension for engaging a part of a lamp casing to retain the socket member in a lamp socket.

11. A socket member for an incandescent lamp, consisting of a sleeve extending in one direction and having an extension projecting in the other direction to receive the lamp bulb, a lamp bulb attached in said extension, said member having a plurality of fingers projecting from said sleeve in the same general direction as said extension for engaging a part of a lamp casing to retain the socket member in a lamp socket, said fingers projecting beyond said bulb.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

HENRY CSANYI.

Witnesses SIDNEY P. HoLLIxcswonrH,

E. H. BICKERTON. 

